Desktop advertising machine



FIG. 1 is a top, front and right side perspective view of a desktop advertising machine showing my new design;

FIG. 2 is a top, rear and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the desktop advertising machine which form no part of the claimed design.

The diagonal lines in the drawings represent reflective surfaces. 

CLAIM The ornamental design for a desktop advertising machine, as shown and described. 